| 摘要 |
The invention relates to an arrangement and a method for the channel-dependent attenuation of the levels of a plurality of optical data channels which each transmit signals of a specific wavelength. The invention provides filter means (1), which split an input signal of the plurality of data channels between at least two optical paths (3, 4) in a wavelength-dependent manner, and attenuating means (2) on at least one of the optical paths (4), which attenuate the signal component of the corresponding path, the paths (3, 4) and signal components being recombined downstream of the attenuating means (2). The invention enables spectral-dependent attenuation of an input signal composed of a plurality of optical signals of different wavelength.
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